\\[-1.8ex] Soil Heterogeneity & $-$1.399$^{***}$ & $-$0.901$^{***}$ & $-$0.677$^{***}$ & $-$0.662$^{***}$ & $-$0.504$^{***}$ & $-$0.430$^{**}$ & $-$0.340$^{*}$ \\ 
  & (0.262) & (0.228) & (0.228) & (0.223) & (0.188) & (0.187) & (0.177) \\ 
  & & & & & & & \\ 
 Wheat Share$_{t-1}$ &  &  &  &  &  &  & $-$3.290$^{***}$ \\ 
  &  &  &  &  &  &  & (0.234) \\ 
  & & & & & & & \\ 
\\[-1.8ex] 
Observations & 10,472 & 10,472 & 10,472 & 10,472 & 10,472 & 10,443 & 10,443 \\ 
R$^{2}$ & 0.010 & 0.378 & 0.387 & 0.390 & 0.394 & 0.399 & 0.439 \\ 
